potted_plant
Onion care requirements
water
Regularly until bulbs begin to swell, then reduce.
soil
Well-draining, fertile soil.
light
Full sun.
symptoms
Symptoms to look for in Onion
- fiber_manual_recordYellow patches on upper leaf surface
- fiber_manual_recordGrey-purple fuzzy growth on undersides
- fiber_manual_recordWilting
help
Common causes in Onion
Caused by Peronospora and Pseudoperonospora species. Spreads in cool, humid conditions.
healing
How to treat downy mildew in Onion
Remove affected material. Apply copper fungicide or phosphonate.
shield
Preventing downy mildew in Onion
Avoid overcrowding. Water in morning. Choose resistant varieties.